>>24694894The easy answer is "they're friends", and that plays more into it than people think. But from a more technical/business standpoint:
She is a completely unselfish collaborator. She doesn't even stream her own perspective 80% of the time.
She's quirky enough to be entertaining, has a decent number of easy go-to lore bits to fall back on if you can't come up with anything to talk about, but isn't oppressive about it and doesn't force insert herself. You won't forget she's there, but she won't hog the spotlight.
She's the type of girl that can get along with literally anyone. She's everybody's 2nd best friend, and nobody's enemy. She worries too much about the later part, but it comes off as endearing instead of pathological.